There is a long list of 308 institutional holders of ALKS within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of ALKS by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-ALKS table below, the initial column indicates the name of each top institutional holder of ALKS, with a link to that fund's top holdings. The next columns indicate the amount of ALKS stock held by each of the institutional holders of ALKS, followed by the ALKS position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

Holder	Amount	Position Size ($ in 1000's)	As of
BlackRock Inc.	30,022,427	$832,822	12/31/2023
ALKS	30,022,427	$832,822	12/31/2023
Vanguard Group Inc.	20,955,454	$581,304	12/31/2023
ALKS	20,955,454	$581,304	12/31/2023
Wellington Management Group LLP	15,241,470	$422,798	12/31/2023
ALKS	15,241,470	$422,798	12/31/2023
State Street Corp	9,352,970	$259,451	12/31/2023
ALKS	9,352,970	$259,451	12/31/2023
Renaissance Technologies LLC	6,049,317	$167,808	12/31/2023
ALKS	6,049,317	$167,808	12/31/2023
Hardman Johnston Global Advisors LLC	5,476,255	$151,911	12/31/2023
ALKS	5,476,255	$151,911	12/31/2023
Pictet Asset Management Holding SA	5,304,613	$147,150	12/31/2023
ALKS	5,304,613	$147,150	12/31/2023
Deep Track Capital LP	4,000,000	$110,960	12/31/2023
ALKS	4,000,000	$110,960	12/31/2023
RTW Investments LP	3,901,523	$108,228	12/31/2023
ALKS	3,901,523	$108,228	12/31/2023
Geode Capital Management LLC	3,638,089	$100,932	12/31/2023
ALKS	3,638,089	$100,932	12/31/2023
Primecap Management Co. CA	3,565,625	$98,910	12/31/2023
ALKS	3,565,625	$98,910	12/31/2023
Bank of New York Mellon Corp	2,882,411	$78,027	03/31/2024
ALKS	2,882,411	$78,027	03/31/2024
Morgan Stanley	2,518,615	$69,866	12/31/2023
ALKS	2,518,615	$69,866	12/31/2023
Dimensional Fund Advisors LP	2,403,195	$66,666	12/31/2023
ALKS	2,403,195	$66,666	12/31/2023
Charles Schwab Investment Management Inc.	2,147,122	$59,561	12/31/2023
ALKS	2,147,122	$59,561	12/31/2023
Artisan Partners Limited Partnership	2,066,020	$57,311	12/31/2023
ALKS	2,066,020	$57,311	12/31/2023
Norges Bank	2,002,453	$55,548	12/31/2023
ALKS	2,002,453	$55,548	12/31/2023
Nuveen Asset Management LLC	1,965,213	$54,515	12/31/2023
ALKS	1,965,213	$54,515	12/31/2023
Northern Trust Corp	1,843,831	$51,148	12/31/2023
ALKS	1,843,831	$51,148	12/31/2023
First Trust Advisors LP	1,651,040	$45,800	12/31/2023
ALKS	1,651,040	$45,800	12/31/2023
Westfield Capital Management Co. LP	1,625,783	$45,099	12/31/2023
ALKS	1,625,783	$45,099	12/31/2023
Price T Rowe Associates Inc. MD	1,595,585	$44,262	12/31/2023
ALKS	1,595,585	$44,262	12/31/2023
Jupiter Asset Management Ltd.	1,486,256	$41,229	12/31/2023
ALKS	1,486,256	$41,229	12/31/2023
Goldman Sachs Group Inc.	1,402,819	$38,914	12/31/2023
ALKS	1,402,819	$38,914	12/31/2023
Bank of America Corp DE	1,389,159	$38,535	12/31/2023
ALKS	1,389,159	$38,535	12/31/2023
Jacobs Levy Equity Management Inc.	1,256,038	$34,842	12/31/2023
ALKS	1,256,038	$34,842	12/31/2023
Armistice Capital LLC	1,200,000	$33,288	12/31/2023
ALKS	1,200,000	$33,288	12/31/2023
Woodline Partners LP	1,170,689	$32,475	12/31/2023
ALKS	1,170,689	$32,475	12/31/2023
Segall Bryant & Hamill LLC	1,100,253	$30,521	12/31/2023
ALKS	1,100,253	$30,521	12/31/2023
Two Sigma Advisers LP	1,083,600	$30,059	12/31/2023
ALKS	1,083,600	$30,059	12/31/2023
FMR LLC	1,053,220	$29,216	12/31/2023
ALKS	1,053,220	$29,216	12/31/2023
American Century Companies Inc.	1,050,474	$29,140	12/31/2023
ALKS	1,050,474	$29,140	12/31/2023
California Public Employees Retirement System	965,192	$26,774	12/31/2023
ALKS	965,192	$26,774	12/31/2023
Principal Financial Group Inc.	939,542	$26,063	12/31/2023
ALKS	939,542	$26,063	12/31/2023
Man Group plc	926,189	$25,692	12/31/2023
ALKS	926,189	$25,692	12/31/2023
Krensavage Asset Management LLC	918,038	$25,466	12/31/2023
ALKS	918,038	$25,466	12/31/2023
Great Point Partners LLC	875,044	$24,274	12/31/2023
ALKS	875,044	$24,274	12/31/2023
Invesco Ltd.	849,988	$23,579	12/31/2023
ALKS	849,988	$23,579	12/31/2023
Panagora Asset Management Inc.	782,657	$21,711	12/31/2023
ALKS	782,657	$21,711	12/31/2023
Loomis Sayles & Co. L P	772,197	$21,421	12/31/2023
ALKS	772,197	$21,421	12/31/2023
Voloridge Investment Management LLC	660,728	$18,329	12/31/2023
ALKS	660,728	$18,329	12/31/2023
Ameriprise Financial Inc.	655,709	$18,189	12/31/2023
ALKS	655,709	$18,189	12/31/2023
Squarepoint Ops LLC	639,234	$17,732	12/31/2023
ALKS	639,234	$17,732	12/31/2023
D. E. Shaw & Co. Inc.	638,433	$17,710	12/31/2023
ALKS	638,433	$17,710	12/31/2023
Legal & General Group Plc	611,364	$16,959	12/31/2023
ALKS	611,364	$16,959	12/31/2023
Palo Alto Investors LP	603,400	$16,738	12/31/2023
ALKS	603,400	$16,738	12/31/2023
Eagle Asset Management Inc.	595,597	$16,522	12/31/2023
ALKS	595,597	$16,522	12/31/2023
JPMorgan Chase & Co.	594,250	$16,484	12/31/2023
ALKS	594,250	$16,484	12/31/2023
Federated Hermes Inc.	495,521	$13,746	12/31/2023
ALKS	495,521	$13,746	12/31/2023
Rhumbline Advisers	485,938	$13,480	12/31/2023
ALKS	485,938	$13,480	12/31/2023